Update app.py

app.py

@@ -42,7 +42,7 @@ prompt_builder = vlm.get_prompt_builder()
 
 @spaces.GPU(duration=20)
 def bot_streaming(message, history, temperature, top_k, max_new_tokens):
-    streamer = TextIteratorStreamer(processor.tokenizer, skip_special_tokens=True)
+    streamer = TextIteratorStreamer(vlm.llm_backbone.tokenizer, skip_special_tokens=True)
     
     if len(history) == 0:
         prompt_builder.prompt, prompt_builder.turn_count = "", 0